But they are all Asians.
Their cultures are a social construct, their race is a coincidence of nature.
If China or Japan had a sudden influx of negros (and you will) would those negros be Chinese or Japanese?
Would they have the same heritage?
Do you think that they would assimulate into Asian society or would they partition themselves in African communitys like they do everywhere else?
Wouldn't their seperation and formation of a distinct non Asian community be a social construct?
When they do this (and they will) are the Asian nations going to adopt the same anti racist policys that have been forced on the White nations and coerce Asian girls to race mix with them?
Are you going to dumb down your educational system to accomodate their low IQ's?
Are you going to cast aside your heritage and culture because they refuse to assimulate into it and embrace their trendy gangster styles and all the violence that goes with it?
Are you going to kiss their asses to prevent them from going on a rampage like they they do in the White nations?
Will you be "tolerant" of them when they rape and murder your friends and family members?
What if things don't work out the way the jews (the hosts of your multiculturalism experiment) say they will and the negros, for some strange unforseen reason, become as problematic as they are in the White nations?
How are you going to reverse it?
Will you round up all the negros and send them back to Africa?

These videos of white immigrants in China might indirectly answer your questions. Some of them speak Chinese perfectly and consider China their home. One woman even says she is a Chinese in a western's body.

"Attempts to create categories of biological races have centered on phenotypic differences. A person's phenotype is the entirety of traits that individual possesses, including external characteristics such as eye color and shape, body size and shape, hair color and texture, and skin color. In recent years attempts have also been made to evaluate genotypic differences to justify biological races. (Genotype refers to a person's genetic makeup.) These attempts have sought to define clusters of characteristics in one population that are lacking in other populations. These clusters supposedly would enable different populations to be divided into distinct races. Such attempts have failed, however, and what researchers have found is that biological variations exist on a cline rather than in delimited geographic clusters with gaps in between. A cline, as defined by anthropologists, means a gradual change of a trait and its frequency from one place to another within a species or population. The change usually corresponds to some transition in environment across the geographic range of a species. Any boundary line drawn along the continuum is therefore arbitrary. So, the idea of distinct races defined by hard-and-fast differences has fallen apart as anthropologists have studied the genetic and physical characteristics of human populations."

"Attempts to create categories of biological races have centered on phenotypic differences. A person's phenotype is the entirety of traits that individual possesses, including external characteristics such as eye color and shape, body size and shape, hair color and texture, and skin color. In recent years attempts have also been made to evaluate genotypic differences to justify biological races. (Genotype refers to a person's genetic makeup.) These attempts have sought to define clusters of characteristics in one population that are lacking in other populations. These clusters supposedly would enable different populations to be divided into distinct races. Such attempts have failed, however, and what researchers have found is that biological variations exist on a cline rather than in delimited geographic clusters with gaps in between. A cline, as defined by anthropologists, means a gradual change of a trait and its frequency from one place to another within a species or population. The change usually corresponds to some transition in environment across the geographic range of a species. Any boundary line drawn along the continuum is therefore arbitrary. So, the idea of distinct races defined by hard-and-fast differences has fallen apart as anthropologists have studied the genetic and physical characteristics of human populations."